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參數(shù)資料
| 型號： | UPD8884A |
| 廠商： | NEC Corp. |
| 英文描述： | (10680 PIXELS x 4 LINES) x 3 COLOR CCD LINEAR IMAGE SENSOR |
| 中文描述： | （1.068萬像素× 4行）× 3彩色CCD線性圖像傳感器 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 285K |
| 代理商： | UPD8884A |
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Data Sheet S17546EJ1V0DS
18
μ
PD8884A
5. Dark signal non-uniformity :
DSNU
Absolute maximum of the difference between ADS and voltage of the highest or lowest output pixel of all the
valid pixels at light shielding. This is calculated by the following formula.
d
j
: Dark signal of valid pixel number j
DSNU (mV) : maximum of
d
j
ADS
j = 1 to Valid pixels
ADS
DSNU
Register Dark
DC level
V
OUT
6. Output impedance :
Z
O
Impedance of the output pins viewed from outside.
7. Response :
R
Output voltage divided by exposure (lxs).
characteristic). R of 4800 dpi is defined as following (refer to
3. Photo response non-uniformity
).
Note that the response varies with a light source (spectral
R
IN
: ˉˉ divided by exposure (lxs)
R
OUT
: ˉˉ divided by exposure (lxs)
8. Image lag :
IL
The rate between the last output voltage and the next one after read out the data of a line.
V
OUT
TG
Light
V
OUT
ON
OFF
V
1
φ
IL (%) =
V
1
V
OUT
×
100
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